Washinotoh



(No Model.)

- J. SCHADE.

DEVIGE FOR REPAIRING PNEUMATIC TIRES.

Patented June 8, 1897.

544mm 07771/ 50% adrw Ln'ua, wnsmuamu n c PATENT OFFICE.

JOHN SOHADE, or BROOKLYN, NEW YORK, ASSIGNOR OF ONE-HALF TO HENRYsoI-IADE, or SAME PLACE.

DEVICE FOR REPAIRING PNEUMATIC TIRES.

SPECIFICATION formingpart of Letters Patent No. 584,295, dated June 8,1897. Application filed August 27, 1896. Serial No. 604,114. (No model.)

T0 at whom it may concern:

Beit known that I, JOHN SOHADE, a citizen of the United States, and aresident of Brooklyn, in the county of Kings and State of New York, haveinvented certain new and useful Improvements in Means for RepairingPneumatic Tires; and I do declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, and-to letters of referencemarked thereon, which form a part of this specification.

Figure 1 of the drawings is a perspective view of the tool or implement.Fig. 2 is a similar view of a larger size of cutter. Fig. 3 is a similarView of a cap for the cutter. Figs. 4, 5, and 6 are detail views showingthe plugs. Figs. 7, 8, 9, and 10 are perspective views illustrating themanner in which the invention is practiced.

This invention has relation to means for the repair of pneumaticvehicle-tires of the kind known as the single-tube or hose-pipe tires;and it consists in the provision of a repair-plug of improved character,all as hereinafter described, and pointed out in the appended claims.

Heretofore in the use of repair-plugs consisting of an enlarged disk orhead having connected a central stem considerable difficulty has beenexperienced in introducing the same through the puncture to the interiorof the tire. The tool commonly employed for this purpose is a pair ofsmall pliers in the jaws of which the disk or head is grasped in foldedform and the whole then forced through the puncture, the pliers beingsubsequently withdrawn past the stem. This operation, besides being moreor less difficult to accomplish, results in an unnecessary enlargementof the puncture and frequently causes the tire around the puncture to betorn to a greater or less extent. Difficulty has also been experiencedin first preparing the puncture to receive the plug, especially when onthe road. A heated punch is commonly employed for this purpose, but suchan implement is not available when on the road,

andis, moreover, objectionable because of its vulcanizing effect uponthe rubber.

The present invention is designed to provide a plug which can beinserted and seated very quickly without the use of pliers or likeinstruments.

In the accompanying drawings, D designates one .of my improved plugs,which in general form is similar to those heretofore employedthat is tosay, it has an enlarged head or disk portion and a central shank orstem. The end of the stem, however, has a conical point 01 and the heador disk port-ion has on its outer face a central recess or depression d.It is also thinned or skived off at its marginal portion, as indicatedat (V, to give it greater flexibility.

Attached to the stem portion is a string or cord F, which is not tiedaround the stem in the usual manner, but is sewed up through said stem,as indicated, whereby its pulling end is central with respect theretoand affords means for giving a direct central pull to the plug. Insecuring this thread the needle is inserted through the stem from theend and out at one side. It is then passed diametrically through thestem and thence back and out at the end, all as clearly shown in Fig. 6.

I will now describe a suitable tool for use in preparing thepuncturesfor receiving the plugs and for seating the same.

In Fig. 1 the letter A designates a suitable holder or handle having inone end a screwthreaded socket a, in which is removably secured a hollowcylindrical cutter B, different sizes of which may be usedinterchangeably in the same tool. The opposite end of the handle has areduced cylindrical extension 0, which forms a punch or pointer for usein the manner hereinafter described.

0 designates a cap for the cutter.

The manner of using is as follows: The puncture being located, thecutter is slightly moistened with the tongue or otherwise and is placedover and around the puncture. A gentle pressure is exerted, while at thesame time it is rotated to the right until it has cut through the tire.The tire should be held as indicated to avoid cutting the oppo- The stemand inside flange of the site side.

plug are then thoroughly cleaned. cement is placed in the hole and uponthe portions of the plug which have been cleaned. The pointed end of theplug is then inserted and forced into the tire up to the head. The cap 0is then placed in the cutter and the end of the pointer is placed in thecentral depression of the head, the free end of the string being slippedover the thumb or finger. By means of the pointer the head is theneasily pushed through the hole into the tire. The string is now pulledgently to invert the plug and draw its stem back through the hole andthe head against the inner surface of the tire. The tire is thenimmediately inflated and after the cement has had time to set the end ofthe plug is cut off. Care should be taken not to get any cement on theback of the plug, which might interfere with its opening out properlywhen inside the tire.

The cutter makes a perfectly smooth clean cut, so that the plug can beinserted without difficulty, this being greatly facilitated by theconical point. The last-named feature, togeth er with the stringarranged to have a central pull, also facilitates greatly the operationof drawing the stem of the plug back through the hole. The centraldepression in the head of the plug is also of importance, since withoutit the pointer or punch would be likely to slip.

To protect the cutter,,the small disk which it cuts in operation may beallowed to remain therein until the next operation ,when it may Plentyof be removed by unscrewing the cutter and running the pointer throughit.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. As a new article of manufacture, the herein-described reversible plugfor repairing pneumatic tires, consisting of a cylindro-conoidal stemportion, a head or flange portion formed with a centrally-locateddepression therein to provide a bearing for a tool in seating the plug,and a pull-cord sewed through said stem portion and secured to pullcentrally thereon, said plug being adapted to be inserted into the tireby its stem end and subsequently reversed, substantially as specified.

2. The herein-described reversible plug for repairing pneumatic tires,consisting of a cyli-ndro-conoidal stem portion having a thread or cordextending transversely through it, and extending by its end portionsobliquely through .the sides thereof to provide two pulling ends, and abeveled head or flange por tion having a central depression thereindesigned to provide a bearing for a tool inse'ating the plug, said plugbeing adapted to be inserted into the tire by its stem endand subsequently reversed, as described.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN SGHADE. Witnesses:

GEORGE I-I. PARMELEE, PHILIP G. lVIASI.

